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[fitsbits] Start of "Foreign File Encapsulation" Public CommentPeriod
This is to announce the start of the Public Comment Period on the "Foreign
File Encapsulation" FITS convention that has been submitted by the IRAF group at NOAO for inclusion in the "Registry of FITS Conventions" that is maintained by the IAU FITS Working Group. A document describing this convention, and a sample FITS file that uses it, are available for public review and comment from the FITS registry web page at http://fits.gsfc.nasa.gov/fits_registry.html This convention defines a new FITS extension type with XTENSION= 'FOREIGN ' as a means of putting a FITS format wrapper about an arbitrary file. This convention enables a file or tree of files to be wrapped up in a FITS file and later restored in the original form to disk. A set of optional keywords are defined to store information about the encapsulated file. An example of the full set of header keywords is shown below: XTENSION= 'FOREIGN ' / NOAO xtension type BITPIX = 8 / Bits per pixel (byte) NAXIS = 0 / No Image matrix PCOUNT = 10756 / File size in bytes GCOUNT = 1 / One group EXTNAME = 'kp-B-pgr_120.png' / Filename EXTVER = 1 EXTLEVEL= 1 / Directory level FG_GROUP= 'kp-ftrB-dps-mdppgr' / Group Name FG_FNAME= 'kp-B-pgr_120.png' / Filename FG_FTYPE= 'binary ' / File type FG_LEVEL= 1 / Directory level FG_FSIZE= 10756 / Data size (bytes) FG_FMODE= '-rw-r--r--' / File mode FG_FUOWN= 'smith ' / File UID FG_FUGRP= 'jones ' / File GID FG_CTIME= '2006-06-15T02:32:49' / file ctime (GMT) FG_MTIME= '2006-06-15T02:32:49' / file mtime (GMT) END This Public Comment Period will remain open for 30 days. Comments may be posted here on the FITSBITS mail exploder or the sci.astro.fits newsgroup. Minor typographical issues may be sent directly to the submitters of the convention. Bill Pence (on behalf of the IAU FITS Working Group) -- __________________________________________________ __________________ Dr. William Pence NASA/GSFC Code 662 HEASARC +1-301-286-4599 (voice) Greenbelt MD 20771 +1-301-286-1684 (fax) |
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